How to work out free spins value

How to work out free spins value in three numbers

Spin offers are advertised by count because big counts sound generous. To compare them properly you need three numbers, worked out in order. Each one is quick to calculate and uses only figures printed in the offer’s terms and the game’s rules screen.

The rest of this guide shows each step with real offers. If you want the background on how spin value and RTP fit together, the RTP guide is a good start.

Step 1: face value, the number the headline hides

Multiply the number of spins by what each spin is worth. Spin value is fixed by the offer and is usually printed in the terms, most often 10p in the UK. You can’t raise it.

The table shows why a count alone misleads. 25 spins at 50p (£12.50) give more play than 100 spins at 10p (£10). Once you think in face value, offers become directly comparable.

Step 2: expected value, using the game’s RTP

Each spin, on average, returns its value multiplied by the game’s RTP. So the expected value of a batch is its face value × RTP. PlayOJO’s 80 spins are played on Big Bass Bonanza, which has a published RTP of 96.71%. Face value is £8, so expected value is £8 × 0.9671, about £7.74.

When the offer names ‘selected games’ rather than one title, use the RTP of the game you plan to play, read from its rules screen, or a typical 96% as a working figure. At 96%, £10 of face value has an expected value of £9.60. The casino may run a lower RTP version than the developer publishes, which nudges the figure down; here is where to find the live RTP.

Step 3: the cost of qualifying

Many spin offers require you to stake money first. That stake goes through a slot with its own house edge, so it has a theoretical cost too. Coral and Ladbrokes both require £10 staked on slots. At 96% RTP, the theoretical cost of £10 staked is 4%, about 40p.

A deposit-only trigger, like PlayOJO’s first deposit of £10, has no built-in cost on its own, because depositing money doesn’t lose it; what you do with the balance afterwards is a separate choice. So for an apples-to-apples comparison, subtract a qualifying cost only where the offer forces you to stake.

These costs are averages across many players. Your £10 qualifying stake could return nothing or several times more. That is the nature of slot play, not a flaw in the calculation.

Step 4: adjust for wagering on the winnings

None of our three spin partners puts wagering on spin winnings, so this step comes out at zero for them. Other offers credit spin winnings as bonus funds that must be staked a number of times before withdrawal. That staking has a cost, which you can estimate as winnings × wagering multiple × house edge.

Here is an illustrative example. 50 spins at 20p have a face value of £10 and an expected value of £9.60 at 96% RTP. If those winnings carry 10x wagering, you must stake about £96. At a 4% edge that costs roughly £3.84 on average, leaving a net expected value near £5.76. A no-wagering version of the same spins keeps the full £9.60. The difference is explained further in no wagering vs wagering free spins.

Since 19 January 2026, UK wagering can’t exceed 10x, so this adjustment is at most around 40% of the winnings at a typical 4% edge. Under older 35x or 40x terms, it could wipe out most of the value.

Step 5: caps, unclaimed days and expiry

Three more conditions can reduce real value. A win cap limits how much spin winnings can pay out; because caps only bite on rare big results, they trim the average modestly but remove the upside. Daily-release offers lose value for every day you don’t claim. And spins left unused when they expire are worth nothing.

Ladbrokes’ offer is the clearest example of the second point. It gives 50 spins a day for 10 days, each batch claimed from the inbox before 23:59. All ten days claimed is 500 spins, £50 of face value. Claiming on six days gives 300 spins, £30 of face value. ‘Up to’ in a headline usually signals a condition like this. The glossary entry on bonus expiry lists the deadlines you will meet.

Worked comparison: three UK welcome spin offers

Applying the steps to the three partner offers, with a 96% working RTP where the offer names selected games rather than one title:

On these numbers, Ladbrokes offers the most face value, but only for players who log in and claim on all ten days; Coral gives the most from a single claim; PlayOJO is the simplest, with one named game and a deposit-only trigger. The deposit £10 get free spins page compares the three in more detail.

Why your actual result will differ from the expected value

Expected value is the long-run average across a huge number of identical batches. Any single batch is a small sample from a game whose wins are unevenly spread. On a high-volatility slot such as Big Bass Bonanza, most batches of 80 spins will return less than the £7.74 average, many will return very little, and a small number will return a lot more, which pulls the average up.

That is why two players claiming identical offers can report wildly different outcomes. Use expected value to compare offers before you claim, not to predict what you will get. How that spread differs from game to game is covered in comparing slot volatility.

A five-step free spins value calculator

1. Face value: multiply the number of spins by the spin value from the terms.
2. Expected value: multiply the face value by the RTP shown in the eligible game’s rules (or 0.96 as a working figure).
3. Qualifying cost: if you must stake money to qualify, multiply that stake by the house edge (for example £10 × 0.04 = £0.40).
4. Wagering cost: if winnings carry wagering, multiply the expected value by the wagering multiple and the house edge.
5. Net value: take the expected value and subtract the qualifying and wagering costs, then note any cap or claim conditions.

Free spins value traps to watch for

• Big counts, tiny values: 200 spins at 1p are worth £2 of face value.
• ‘Up to’ totals: the full number may need daily claims or several deposits.
• Low-RTP eligible games: a game at 94% returns less per spin than one at 96.71%.
• Excluded payment methods: depositing the wrong way can make the value zero.
• Wagering on winnings: even at the 10x cap, it takes a real slice of value.

Our free spins terms guide explains each condition, and how to claim free spins covers claiming them correctly.

Three offers worth valuing

In value terms: PlayOJO’s offer is £8 of spins (80 × 10p on Big Bass Bonanza) for a first deposit of at least £10, outside Northern Ireland. Coral’s is £10 of spins (100 × 10p) after £10 is staked on slots, to be accepted inside 48 hours and played within a week. Ladbrokes’ is up to £50 of spins (50 × 10p a day for 10 days) after a £10 slots spend, with each day’s batch claimed before midnight. Spin winnings at all three are cash, with no play-through. Over-18s only; terms apply. More on the no wagering slot sites page.

18+. Gambling should be entertainment that costs money, not a way to make it. Set a deposit limit before you play: how to set limits. Free, confidential help: National Gambling Helpline 0808 8020 133.